[Event "Hamburg"] [Site "?"] [Round "0"] [White "Maroczy"] [Black "Betbeder"] [Result "1-0"] [ECO "C11"] [Opening "French: Burn, 5.Nxe4"] {Liquidation into a Queen ending} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. c3 Nd7 8. Qc2 Qe7 9. O-O-O b6 10. f4 Bb7 11. g3 O-O-O 12. Bg2 c5 13. Nf3 cxd4 14. Nxd4 Bxd4 15. Rxd4 Nc5 16. Re1 Qc7 17. Red1 { White has slightly more space, but no more. Black decides to liquidate} 17... Rxd4 18. Rxd4 Nxe4 19. Bxe4 Rd8 20. Qd3 $1 (20. Bxb7+ Qxb7 21. Rxd8+ Kxd8 22. Qxh7 Qh1+ 23. Kc2 Qg2+ 24. Kb3 Qd5+ 25. c4 Qf3+ 26. Kb4 a5+ 27. Kb5 Kc7 { White cannot win}) 20... Rxd4 21. Qxd4 f5 (21... g6 22. Qh8+ Kd7 23. Bc2 $1 h5 24. Qf8) (21... Bxe4 22. Qxe4 g6) 22. Bxb7+ Qxb7 {The liquidatio n is complete, and both sides have achieved their aims. Black it is true, has slightly the worst of it, but he feels this Queen and pawn ending must be drawable. However, Maracozy was probably the best Queen and pawn ending player of all time} 23. Kc2 Qa6 (23... Qg2+ 24. Kb3 Qxh2 25. Qxg7 {only helps White}) 24. a4 (24. Qxg7 Qe2+ {perpetual check}) 24... Qb7 25. Kb3 h5 (25... Qd5+ 26. Qxd5 exd5 27. c4 $1 dxc4+ 28. Kxc4 Kc7 29. Kd5 $18) 26. Qd6 Qf7 27. Ka3 Kb7 28. h4 a5 29. b4 axb4+ 30. cxb4 Qg6 31. Qd7+ Kb8 32. Qd3 Qf6 33. Kb3 Qa1 34. a5 $1 { The winning motif: White uses an outside passed pawn to force a win} 34... bxa5 35. Qb5+ Kc8 (35... Kc7 36. Qxa5+ Qxa5 37. bxa5 $18) 36. Qc6+ Kb8 37. Qb6+ Kc8 38. Qxe6+ Kd8 39. Qd5+ Ke7 40. bxa5 Qb1+ 41. Ka4 g6 42. a6 Qa1+ 43. Kb5 Qb2+ 44. Kc6 Qf6+ 45. Kc7 Qc3+ (45... Qxa6 46. Qd7+ Kf6 47. Qd6+ $18) 46. Qc6 Qe3 47. Kc8 $1 1-0